Sarmah, L and Kalita, S and Wojnar, A (2022) Stability criterion for white dwarfs in Palatini f(R) gravity. In: Physical Review D, 105 (2).
|
PDF
phy_rev_105-02_2022.pdf - Published Version Download (553kB) | Preview |
Abstract
Recent observations of several peculiar over- and underluminous type Ia supernovae infer indirect evidence for the violation of the Chandrasekhar mass limit by suggesting the existence of super- and sub-Chandrasekhar limiting mass white dwarfs. In an attempt to explain these phenomena in the context of general relativistic extensions, we study these objects in Palatini f(R) gravity. We obtain the super- and sub-Chandrasekhar limiting masses as well as the dynamical instability criteria for white dwarfs in the given gravitational theory. We further demonstrate that the conventional positivity condition �M/��c>0 with M being the WD�s mass with central density �c is also a valid criterion for stability in Palatini gravity. © 2022 American Physical Society
| Item Type: | Journal Article |
|---|---|
| Publication: | Physical Review D |
| Publisher: | American Physical Society |
| Additional Information: | The copyright for this article belongs to Authors |
| Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 10 Feb 2022 11:52 |
| Last Modified: | 10 Feb 2022 11:52 |
| URI: | http://eprints.iisc.ac.in/id/eprint/71155 |
Actions (login required)
 |
View Item |
